The 650 red and white Japanese plum trees of this Tokyo neighborhood blossom each spring.

An oasis of beauty, tranquility and botanical research in the middle of Rome.

The world's northernmost botanic garden has 25 collections of plants from arctic and alpine regions.

A futuristic climate change study is nestled deep within this public land.

The ominously named cave is home to some remarkable ancient art.

This curious fresh and salt water lake holds a secret that draws in deep divers from around the world.

Mysterious heaps of stones dot these otherworldly woods.

This lake’s emerald green waters are a spectacular sight, but it’s not a great place for a swim.

This Turkish cave boasts some rather bizarre associations with the King of Mount Olympus.

An eerie reminder to the horrors of World War II.

An amateur telescope-making club has been gathering at this Vermont site for more than a century.

The headquarters of one of Japan’s leading astronomy research institutions features several historic observatory facilities and a 2,000-year-old burial mound.

Where George Lemaître discovered the expanding nature of the universe.

A walk along this white sand beach creates a symphony.

An astonishingly accurate water clock that doubles as an hourly spectacle in this Berlin shopping area.

A 132-year-old telescope continues to keep watch over the night skies above Providence.

This public observatory is home to the "celestial cannon," the longest pointable telescope in the world.

A sobering scientific reminder of the human damage caused by the advent of the nuclear age.

The oft-overlooked site of one of the first marine biological research facilities in the world.

These medieval wooden bridge pillars appeared out of nowhere in the aftermath of a huge earthquake.

Palace, temple, and pyramid ruins mark the ancient Mesoamerican capital of Totonacapan.

This archaeological site was once a grand city of the Indus Valley Civilization with a sophisticated system for conserving water.

This Belgian observatory bears a striking resemblance to Futurama's Planet Express building.

This airy five-floor library and museum houses thousands of books and rotating exhibits on Japanese monsters and anime.